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APPARATUS FOR AUTOMATICALLY CUTTING OFF GAS FROM BURNERS. No. 327,963.Patented Oct. 6. 1885 UNITED STATES PATENT OFFICE.

CHARLES G NYE, OF SYRACUSE, NETV YORK.

APPARATUS FOR AUTOMATICALLY CUTTING OFF GAS FROM BURNERS.

SPECIFICATION forming part of Letters Patent No. 327,963, dated October6, 1885.

Application filed November 26, 1884. Serial No. 148,959. (No model.)

T0 on whom it may concern:

Be it known that I, CHARLES G. NYE, of Syracuse, in the county ofOnondaga, in the State of New York, have invented new and usefulImprovements in Apparatus for Automatically Cutting off Gas fromBurners, of which the following, taken in connection with theaccompanying drawings, is a full, clear, and exact description.

The object of this invention is to guard against waste of gas incidentto the neglect of persons leaving the room without shutting off the gas;and to that end my invention con-. sists, essentially, in thecombination, with the gas-burner and the door of the apartmentcontaining said burner, of a bolt on the door, a lever arranged to beactuated by said bolt, and mechanism for transmitting motion from saidlever to the valve controlling the flow of gas to the burner, all ashereinafter more fully described, and specifically set forth in theclaims.

In the annexed drawings, Figure 1 is a View of the interior of anapartment equipped with my invention. Fig. 2 is an interior view of thestrike or catch plate of the lock, showing the lever which is actuatedby the bolt and transmits motion to the valve of the gas-pipe. Figs. 3and 4 are respectively front and side views of the aforesaid valve; andFig. 5 is a View of the interior of the strike with the lever removed,to show the stop which limits the movement of said lever.

Similar letters of reference indicate corresponding parts.

A represents a gasfixture, of any ordinary and well-known style, screwedto the gas-pipe B, and provided with burners O G.

t denotes a valve connected with the gaspipe above the gas-fixture, andprovided with the usual key-head, k, by which to turn said valve. Aspring, s, is connected at one end with the valve and at the oppositeend with the case of the valve or with some other stationary object, andis bent in such a manner as to cause it to normally turn the valve intoan open position. On the key-head k of the valve I clamp, adjustably, ametallic band, a, bent into the shape of a lever or segmental bow, andhaving its extremities fastened conjointly on the key-board at onesideof the axis thereof by a screw, 6.

Another screw,

6, passes through the band 0 and engages the key'head at the oppositeside of the axis thereof. By means of this latter screw the keyhead Itcan be set at different angles in relation to the lever-shaped band a,and thus made to shut off the gas to a greater or less degree by theturning of said cam, as hereinafter de scribed.

D represents the door of the apartment con taining the gas-fixture withits burners, and Z denotes a lock attached to said door, which lock maybe of any ordinary and well-known style, having a bolt entering acatch-plate or so-called strike, m, and adapted to belocked and unlockedfrom the outside of the door. In the strike m is pivoted a lever, a, oneof the free ends of which is arranged to be encountered by the boltentering the strike in locking the door. To the opposite end of saidlever is attached a wire or cord, d, which is extended through anaperture in the strike, and thence in a suitable manner to the lever c,which is connected with the valve 22 on the gas-pipe, said wire or cordbeing connected with the lever a in such a manner that a draft on theformer turns the latter, and thereby also turns the valve in thedirection to shut ofi' the gas. The lever a, Iprefer to make ofsegmental form, and pivot the same at the center thereof, thereby makingit reversible, and adapted to be used in connection with either a rightor left hand lock. The interior of the strike m, I provide with a rigidlug, 1), arranged to encounter flanges on the ends of the lever a, andthus limit the movement of said lever.

\Vhen the door is unlocked, the lever a is relieved of the pressure ofthe bolt of the lock, and the spring sis thus allowedfftoIholdZthe valve21 in an open position; hence when the person is within the apartmentand leaves the door unlocked the operation of the gas-fixture isundisturbed, and the light can be controlled by the cocks with which thefixture is usually provided. Should the person leave the apartmentwithout turning down the gas,upon closing the door and looking it fromthe outside the bolt of the lock strikes the lever a, and thereby turnsthe same into the position illustrated by full lines in Fig. 2 of thedrawings.

The turning of said lever produces a draft on the wire or cord d, whichlatter turns the lever 0, and with it the valve 12, so as to shutoff thegas.

By means of the screw 0 the lever 0 can be so adjusted as to cause thesame to turn the valve 1) a greater or less distance, and thus shut offthe gas to a greater or less degree, the intention being to retain asmall flame. Upon unlocking the door the lever a is relieved of thestrain from the bolt,and the spring 8 then restores the valve to itsopen position, to allow a full flow of gas to the burners.

I do not limit myself to the specific form of the levers a and c, asshown in the annexed drawings, as it is obvious that the same issusceptible of many modifications, and that cranks and other mechanicalequivalents can be employed in lieu of the described cams; neither do Iwish to limit myinvention to the location of the lever a in thecatch-plate or strike m, inasmuch as said lever or its equivalent can bearranged at other points in proX- imity to the door, so as to beactuated by the same in opening and closing it.

I am aware that prior to my invention the supply of gas to burners hasbeen regulated by an oscillating platform arranged near the door of theapartment containing the burner, which platform was connected with theburners by suitable levers and rods, and was actuated by a personstepping upon said platform. It is obvious that such a device eithernecessitates cutting into the floor an opening for the reception of theplatform or presents an obstruction on the floor when placed over thesame. leaves the floor smooth and solid, and is in a position where itis comparatively safe from tampering and breaking.

WVhat I claim as new, and desire to secure by Letters Patent, is

1. In combination with the gas-burner and the door of the apartmentcontaining said burner, a bolt on the door, a lever arranged to beactuated by said bolt, and mechanism for transmitting motion from saidlever to the valve controlling the flow of gas to the burn er,substantially as set forth.

My invention is more easily applied,

2. In combination witha gas pipe and burner connected to said pipe andthe door of the apartment containing said burner, a valve connected withthe said gas-pipe and held normally in an open position, a leverconnected with said valve for turning the same, a lock on the door,adapted to be operated from the outside of the door, a lever connectedwith the strike or catch plate of the lock, and adapted to be actuatedby the bolt of the lock, and a wire or cord connecting the said leverwith the lever of the valve, substantially as specified and shown.

3. In combination with the gas pipe and burner and the door of theapartment containing said burner, the valve 1), provided with thekey-head k, the lever 0, attached to said key-head, the spring .9,arranged to normally hold the valve in an open position, the lock Z,arranged to be opened from the outside of the door, the lever to,pivoted in the strike in and arranged to be actuated by the bolt of thelock, and the wire or cord d, connecting the levers a and 0,substantially as described and shown- 4. I11 combination with the gaspipe and burner and the door of the apartment containing said burner,the valve 1), provided with the key-head 7c, the levenshaped metallicband 0, adj ustably connected with the keyhead by screws 0 e, the spring8, arranged to normally hold the valves in an open position, the lock Z,arranged to be opened from the outside of the door, the lever a, pivotedto the strike m, and arranged to be actuated by the bolt of the lock,and the wire or cord d, connecting the levers a and c, all constructedand combined to operate substantially in the manner shown and set forth.

In testimony whereof Ihave hereunto signed my name and affixed my seal,in the presence of two attesting witnesses, at Syracuse, in the countyofOnondaga, in the State of New York.

CHARLES G. NYE. [L.

lVitnesses:

FREDERICK H. GIBBs. WM. 0. RAYMOND.

